Windows XP still hanging on as dominant OS
It doesn’t surprise me that Windows XP is still the top OS in the market. Windows Vista was a horrendous release and, as such, probably didn’t help sales of Windows 7 very much.
For enterprise in particular, I would imagine that the holdout for upgrades to Windows 7 probably has a bit to do with rollout and management tools. With Windows Vista, Microsoft changed the setup process quite a lot. As such, rollout and management tools that used to work with XP wouldn’t work so well with Vista. Even with Windows 7, enterprise customers have to find ways to manage both Windows 7 and Windows XP computers at the same time. i would bet that managing both can be a real pain and thus they tend to stick with the lowest common denominator, Windows XP. I believe the old saying “If it works, don’t fix it!” would apply here.